NDLI: Numerical Simulation of Infiltration of Carbon Fiber Preform in MMC Casting With Thermal Management

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Lee, E. K. Amano, R. S. Rohatgi, P. K.
Copyright Year	2003
Abstract	In the casting of metal matrix composite, different processing parameters need to be controlled in order to promote the formation of primary alpha phase around the reinforcement. It has been shown [1–3] that when the reinforcement is allowed to be extended out of the cast mold and cooled by a heat sink, the microstructure of the composite can be improved due to faster heat extraction through the reinforcement. Thermal management of the reinforcement can eliminate a large portion of the eutectic phase during solidification, leading to an altered microstructure at the interface between the matrix and the reinforcement with the possibility of improved material properties. A companion paper [4] shows a comparison of the numerical simulation result of the casting of MMC by squeeze infiltration technique to the experimental work. The authors assumed that the solidification process started after the liquid metal has completely infiltrated the reinforcement. The simulation result gives a reasonable prediction to the experimentally measured cooling temperature profile. In this work, the effects of other processing parameters are analyzed to study the impregnation depth during squeeze infiltration. These processing parameters include the thermal conductivity of fibers, the initial (or preheat) mold temperature, the volume fraction of fibers, and the heat sink temperature. The study is based on the finite volume method for enthalpy formulated heat equation.
Sponsorship	Heat Transfer Division
Starting Page	29
Ending Page	35
Page Count	7
File Format	PDF
ISBN	0791836959
DOI	10.1115/HT2003-47032
e-ISBN	0791836797
Volume Number	Heat Transfer: Volume 3
Conference Proceedings	ASME 2003 Heat Transfer Summer Conference
Language	English
Publisher Date	2003-07-21
Publisher Place	Las Vegas, Nevada, USA
Access Restriction	Subscribed
Subject Keyword	Temperature Preforms Cooling Computer simulation Enthalpy Liquid metals Temperature profiles Finite volume methods Fibers Solidification Casting Carbon fibers Heat Composite materials Simulation results Materials properties Thermal management Metal matrix composites Thermal conductivity Heat sinks
Content Type	Text
Resource Type	Article

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